TSO Products

Systainer Insert Set for GRS-16 Guide Rail Squares

(20 reviews) Write a Review
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  • Depiction of the dual, stackable foam inserts.
  • Depiction of the dual, stackable foam inserts with GRS-16 and GRS-16 PE
  • Depiction of insertion order of inserts into Systainer.
  • Stackable foam inserts fit two GRS-16s in a single Systainer.
  • Top-down view of foam inserts for Systainer.
  • GRS-16 PE Guide Rail Square shown inside TSO Systainer3 with protective foam insert.
  • GRS-16 Guide Rail Square shown inside TSO Systainer3 with protective foam insert.


Bundle Offer: Save $5 when you purchase this GRS-16 Foam Insert and a TSO Systainer at the same time. This is an automatic discount at checkout and requires no coupon code.

Total Storage & Protection for Up to Two Guide Rail Squares

The Dual FoamPac Systainer Insert protects both your GRS-16 and GRS-16 PE guide rails at the same time!
Note: The image above depicts our now-obsolete T-LOC Systainer, which has since been replaced by the Systainer3 M 112. However, order of insertion remains the same.

Designed specifically for our newer (post-October 2017) GRS-16 and GRS-16 PE guide rail squares, our Dual FoamPac Insert enables storage of up to two guide rail squares in a single Systainer3 M 112! These inserts are also compatible with the GRS-16 PE K (Kreg) and GRS-16 PE D (DeWalt) guide rail squares.

Super protective Kaizen foam is computer designed and cut by CNC router, so these systainer inserts are guaranteed to fit your guide rail squares like a glove. The result is uncompromising protection for your precision tools. Kaizen foam not only protects your guide rails, but can also be easily further customized with the available Kaizen foam hot knife.

Note: These systainer foam inserts only fit into the Systainer3 M 112 and now-obsolete T-LOC Systainers; not the older Classic Systainers.

Note: These inserts are only compatible with the new style of GRS-16 and GRS-16 PE, ordered after October 13, 2017.

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Warranty & Returns

TSO brand products are guaranteed for five years from date of sale against defects in materials or workmanship. Normal wear and tear and accidental damage are not covered. For any product determined to have a defect covered by this warranty, TSO Products will repair or, at its option, replace with current comparable product. Warranty requests require an RMA (return authorization number) prior to any return. Request an RMA number by contacting TSO Customer Service (
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20 Reviews

  • 1

    Posted by Gary Rutherford on 30th Jan 2024

    Absolutely no QC on the set I received. They fit ok in sustainer but the guide square is loose and the cnc job is sloppy.

  • 4
    Insert improvements rail guide

    Posted by Paul on 1st Jan 2024

    It would be an improvement to add a finger hole on the top layer to make it removal easier to get at the bottom rail guide. There is plenty of space to cut the foam for storage of angle guide extensions.

  • 5
    Excellent Fit!!

    Posted by Terry Thillemann on 17th Dec 2023

    I accidentally dropped my Woodpeckers square and the aluminum got marred ... this should hopefully protect my investment and allows me to carry it in a nice systainer.

  • 5
    Sustainer insert

    Posted by Bryan Thrush on 31st Oct 2023

    Nice fit for both rail squares.

  • 5
    systainer Insert

    Posted by Dave on 12th Sep 2023

    I really like these inserts as they will protect my guide from damage , and also provides storage for a second square

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